How many liters of a 50% acid solution must be mixed with a 30% acid solution to get 180 L of a 40% acid solution?
____ liters of a 50% acid solution must be used.
Answers
Answer: 90
Step-by-step explanation:
Related Questions
Robert spends $30.45 before tax at the bookstore. If the sales tax rate in his city is 7.25%, what is the total cost of his purchase?
Answers
Answer:
32.65
Step-by-step explanation:
Answer:
Total cost of purchase = $32.66
Step-by-step explanation:
$30.45 before tax
If sales tax = 7.25% or 0.0725, then: $30.45 × 0.0725 = $2.21
Add the sales tax of $2.21 to $30.45 = $32.657 or $32.66
Therefore, the total cost of his purchase is $32.66
which phrase describes the solution set for this function?
f(x)= 2(x-1)^2 +4
A.) two complex solutions
B.) one real solution
C.) two real solutions
D.) one real solution and one complex solution
Answers
Answer:
Step-by-step explanation:
C
Answer:c two real solutions
Step-by-step explanation:
Solve the following expression
k=6 and c = 2
5 x k - 10c + 8
Answers
Answer:
the answer is 18
Step-by-step explanation:
5×6-10(2)+8
=30-20+8
=18
what divided by 25 = 4.8?
Answers
Answer:
120/25 = 4.8
Step-by-step explanation:
To set up the equation you would do this-
[tex]\frac{4.8}{1} =\frac{x}{25} \\[/tex]
Then cross multiply (multiply 4.8 by 25 and x by 1)
[tex]4.8(25) = x(1)\\120 = x[/tex]
What is the value of |15-2|.
Answers
Hello! The l l notation indicates "absolute value"
Keep in mind that the absolute value is always positive. The absolute value is the distance from zero. The distance is never negative.
So
l15-2l=l13l=13
I hope this helps you!
[tex]GraceRosalia :) :) :)[/tex]
two ratios that are equivalent to 4:18
Answers
3. What type(s) of symmetry is/are shown in the figure below!
Oreflectional symmetry only
Oreflectional and point syrometry only
reflectional and rotational symmetry only
reflectional, rotational, and point symmetry
Answers
Answer: reflectional, rotational, and point symmetry
Answer:
For the Symmetry Quiz (connexus)
Step-by-step explanation:
1. Reflectional and point symmetry
2. Reflectional symmetry
3. Reflectional, Rotational and point symmetry
4. A rolling pen
5. 10
why tHE F is MATH HARD KKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKK
Answers
Answer:
well it isn't hard
have a nice day
Please help me out I can’t not afford to fail math right now I will mark brainliest when it lets me
Answers
that's because 5 to the power of 2 is 25
Answer:
x = 5, -5
Step-by-step explanation:
17+x^2=42
-17 -17
x^2 = 25
x = + or - root of 25
x = 5,-5
hhhhhhhhhhheeeeeeeeelllllllllllllppppppppp
Answers
Answer:
Your answer is C. Angle a is congruent to both angles 3 and 1.
Step-by-step explanation:
Pls answer ASAP timed assignment
Answers
Answer:
A and C
Step-by-step explanation:
Answer:
a and c are right
Step-by-step explanation:
the base must be the number and the exponent is how many times it is multiplied
-2y + 6 = -12
what is the answer??
Answers
Answer:
9
Step-by-step explanation:
Simplifying
2y + -6 = 12
Reorder the terms:
-6 + 2y = 12
Solving
-6 + 2y = 12
Solving for variable 'y'.
Move all terms containing y to the left, all other terms to the right.
Add '6' to each side of the equation.
-6 + 6 + 2y = 12 + 6
Combine like terms: -6 + 6 = 0
0 + 2y = 12 + 6
2y = 12 + 6
Combine like terms: 12 + 6 = 18
2y = 18
Divide each side by '2'.
y = 9
Simplifying
y = 9
Answer:
Y=9
Step-by-step explanation:
Subtract 6 from both sides. Simplify. Dive both sides of the equation by the same term. Simplify. Solution y=9
4 1/2 yards of rope -6 2/3 yards of rope
Answers
Answer:
-2.17 yrds?
Step-by-step explanation:
A hockey team plays 42 matches. It wins 21, draws 14 and loses the rest. Express each of these results as a percentage of the total number of games played.
Answers
Express the number of each result as a fraction of the total number of games played and multiply with 100.
The percentage of the games won is :21/42 × 100 = 50%The percentage of the draw games is :14/42 × 100 = 100/3 = 33 1/3%The percentage of the games lost is :42-21-14/42 × 100 = 7/42 × 100 = 50/3 = 16 2/3%What is the sum of the addition equation 0.6 + 0.2 = ________? Use the decimal grid to help you solve. (2 points)
a decimal grid partitioned into ten equal parts, with six parts shaded orange and two parts shaded purple
Group of answer choices
0.4
0.6
0.8
1
Answers
Which one of the following pairs of integers has a product of –18 and a sum of –7?
a 2 and –9
b 3 and –6
c –1 and 18
d –2 and 9
Answers
Victor and his friends are preparing for an epic snowball fight. They make 85 snowballs before Victor's dad calls them in for lunch. After lunch, they make more snowballs. In all, Victor and his friends make 153 snowballs.
Which equation can you use to find the number of snowballs s Victor and his friends make after lunch?
Answers
Answer:
85+x=153
Step-by-step explanation:
So basically, Victor made an unknown amount of snowballs after lunch, and you need to find the amount. You can represent the unknown as the variable x. Then, you get the equation 85+x=153
The equation used to find the number of snowballs s Victor and his friends make after lunch is s + 85 = 153.
Given data:
Victor and his friends are preparing for an epic snowball fight. They make 85 snowballs before Victor's dad calls them in for lunch. After lunch, they make more snowballs. In all, Victor and his friends make 153 snowballs.
Now , the equation to find the number of snowballs Victor and his friends make after lunch is determined as :
s + 85 = 153
In this equation, "s" represents the number of snowballs they make after lunch. The equation states that the sum of the snowballs made before lunch ("85") and the snowballs made after lunch ("s") is equal to the total number of snowballs they made ("153").
Hence, the equation is s + 85 = 153
To learn more about equations, refer:
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Translate to an equation and solve.
50% of $___ is $25.
Answers
Answer:
50$
Step-by-step explanation:
50% means 1/2 of something.
So...
1/2 of 50 is 25.
-kiniwih426
Answer:
$50
Step-by-step explanation:
Solution:
Let the unknown number be x
50% × x = $25
50/100 × x = 25
x = 25×100/50
x = $50
Varification:
50% of $50 is $25
50/100 × 50 = 25
25 = 25
Write an equation of the line passing through the point (7, 3) that is parallel to the line 4x - 7y=9
Answers
Answer:
y = 4/7x - 1
Step-by-step explanation:
7y = 4x - 9
y = 4/7x - 9/7
3 = 4/7(7) + b
3 = 4 + b
b = -1
what would be the measure of <a.
Answers
Answer:
360 is the constant
Step-by-step explanation:
Solve for x!!!!!!! Plzzzz
Answers
x = 7
Step-by-step explanation:
(12x + 1) + 95° = 180°
12x + 96 = 180°
12x = 84
x = 84/12
x = 7
I hope you have a good day!!
What is the missing value?
Answers
Answer:
The second one is 33
The first one is 17
Step-by-step explanation:
For the first one your just adding three the second one your just adding 8
To join the school swim team, swimmers must be able to swim at least 480 yards
without stopping. Let n represent the number of yards a swimmer can swim without
stopping. Write an inequality describing which values of n will result in a swimmer
making the swim team.
a)
nis greater than or equal to 480
b) n is less than or equal to 480
n is greater than 480
d)
n is less than 480
Answers
Answer:
A) n is greater than or equal to 480.
Step-by-step explanation:
The keyword "at least" means greater than or equal to.
A rainwater collection system collects water into a holding tank. For every 1 cm of rainfall on a 100 m² roof, 1,000 L of water can be colleA. How many liters of water can be crainfall on a 120 m² roof?
Part B. How many centimeters of rainfall are needed to fill a 40,000 L holding tank from a 120 m² roof?
Answers
Answer:
A: 3 0 0
B: 150 ;-;
Step-by-step explanation:
!!!!!!PLEASE I NEED HELP!!!!!! I WILL GIVE YOU BRAINLIEST!!!!!
1.The product of two consecutive negative integers is 10506. Write a quadratic equation that you could solve to find the integers.
Answers
[tex] {x}^{2} + x - 10506 = 0[/tex]
Step-by-step explanation:
-x, -(x+1)
-x-(x+1)=10506
x^2+x-10506=0
NEED Help What is one element a topographic map shows?
Elevation
Space
Temperature
Weather
Answers
Answer:
One element a topographic map shows is Elevation.
Step-by-step explanation:
HELP PLEASEEEE THIS IS DUE IN LIKE 20 MINUTES
Answers
Answer:
m = 1/4
Step-by-step explanation:
Remember to use y = mx + b
During a hot summer week, Mr. Singh sold 60 watermelons. On Monday, he sold
he sold half the number of watermelons he sold on Monday. On Thursday, Mr. Singh sold 18
watermelons. On Tuesday, he sold twice as many watermelons than Monday. On Wednesday,
watermelons. On Friday, he sold four more than twice the amount he sold on Monday and
Tuesday combined. How many watermelons did he sell on Friday?
Help please
Answers
Find the change below as a percentage. Then choose whether it is a percent of increase or a percent of decrease.
Change from 32 miles to 24 miles.
х
G
Percentage change: 196
This is a percent of increase.
This is a percent of decrease.
Need help with this question?
Answers
Answer:
increase
Step-by-step explanation:
the change from 32 miles to 24 is decrease is 8 difference. % change to 196 is an increase.
The percentage change is 25% and it is a percent of increase.
What is Percentage?percentage, a relative value indicating hundredth parts of any quantity.
To find the percentage change from 32 miles to 24 miles, we first need to calculate the absolute change:
Absolute change = Old value - New value
Absolute change = 32 miles - 24miles
Absolute change = 8 miles
Percentage change = (Absolute change / Old value) x 100%
Percentage change = (8 miles / 32 miles) x 100%
Percentage change = 25%
Which means there is a 25% increase from 32 miles to 24 miles.
Therefore, the percentage change is 25% and it is a percent of increase.
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Which table represents a linear function.
Answers
Answer:
The third table represents a linear function
Step-by-step explanation:
The first table is not a function
The second table is not linear
The fourth table is not a function
